| Year | Debater | Record | Result |
|---|---|---|---|
| 1986 | Mike Halliday & Eric Rapp | 2-2 | Octafinalist |
| 1981 | 2-2 | Octafinalist | |
| 1980 | 2-2 | Did Not Clear | |
| 1979 | 0-4 | Did Not Clear | |
| 1978 | Kay Biga & Bill Karich | Unknown | Did Not Clear |
| 1977 | Unknown | Quarterfinalist | |
| 1976 | Unknown | Quarterfinalist | |
| 1975 | Unknown | Quarterfinalist | |
| 1974 | Unknown | Octafinalist | |
| 1973 | Unknown | Semifinalist | |
| 1972 | Unknown | Did Not Clear | |
| 1971 | Unknown | Did Not Clear | |
| 1970 | 7-3 | 5th Place | |
| 1969 | 5-5 | 14th Place | |
| 1968 | 5-5 | 11st Place | |
| 1967 | 7-3 | 8th Place | |
| 1966 | 7-3 | 6th Place | |
| 1964 | 5-5 | 12nd Place | |
| 1963 | 5-5 | 14th Place | |
| 1962 | 8-2 | 2nd Place | |
| 1961 | 10-0 | 1st Place | |
| 1960 | 4-2 | 5th Place | |
| 1959 | 5-1 | 4th Place | |
| 1957 | 4-2 | 3rd Place | |
| 1956 | 5-1 | 2nd Place | |
| 1955 | 5-1 | 3rd Place | |
| 1954 | Joan Kempf, Dick Puglesi, Carol Williams & Glenn Sampson | 5-1 | 3rd Place |
| 1953 | 6-0 | 2nd Place | |
| 1952 | 6-0 | 1st Place | |
| 1951 | 4-2 | 4th Place | |
| 1948 | Roger Johnson, Sheldon Karen & Dwight Lindholm | 3-1 | 2nd Place |
| 1947 | Sheldon Karon, David Ottensmeyer & Bill Robertz | 4-0 | 1st Place |
| 1945 | N/A | Semifinalist | |
| 1944 | N/A | Quarterfinalist | |
| 1941 | N/A | Semifinalist | |
| 1924 | N/A | Unknown |